From 49d2fc7c5af1a7b097ec9fdcaa1e32f77f86cafe Mon Sep 17 00:00:00 2001
From: rainie <463103063@qq.com>
Date: Mon, 3 Jul 2017 19:55:25 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20=20[bug]fix=20android4.4=20Touch?=
 =?UTF-8?q?Event=20has=20PageY=20propery=20(https://github.com/lanjingling?=
 =?UTF-8?q?0510/react-mobile-datepicker/issues/9)?=
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---
 lib/DatePickerItem.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/DatePickerItem.js b/lib/DatePickerItem.js
index fbd402b..543d70a 100644
--- a/lib/DatePickerItem.js
+++ b/lib/DatePickerItem.js
@@ -170,13 +170,19 @@ class DatePickerItem extends Component {
     }
 
     handleStart(event) {
-        this.touchY = event.pageY || event.targetTouches[0].pageY;
+        this.touchY =
+            (event.targetTouches && event.targetTouches[0] && event.targetTouches[0].pageY) ||
+            event.pageY;
+
         this.translateY = this.state.translateY;
     }
 
 
     handleMove(event) {
-        const touchY = event.pageY || event.targetTouches[0].pageY;
+        const touchY =
+            (event.targetTouches && event.targetTouches[0] && event.targetTouches[0].pageY) ||
+            event.pageY;
+
         const dir = touchY - this.touchY;
         const translateY = this.translateY + dir;
         const direction = dir > 0 ? -1 : 1;